TruSight

Intelligent slimhole MWD service

Applications

  • Uncertain well drilling conditions?
  • Long laterals and extended-reach drilling (ERD) wells?
  • Complex 3D trajectories?
  • Deeper formation targets?
  • Deepwater wells
  • Unstable or depleted formations?
  • Complex geological profiles?
  • Performance drilling improvement?
  • HT and HP operations

Benefits

  • Improves trajectory control 
  • Eliminates static survey time 
  • Increases ROP with complex LWD BHA 
  • Optimizes drilling performance 
  • Provides early detection of drilling dysfunctions 
  • Facilitates real-time decision making on well control and drilling parameters
  • Improves geosteering and well placement 
  • Enhances formation evaluation 
  • Enables longer runs and higher data density due to improved memory capacity
  • Reduces HSE exposure and lost-in-hole (LIH) exposure 
  • Reduces uncertainty ?in interpretation of ?leakoff and ?formation integrity tests
  • Delivers consistent performance in HT and HP environments

Features

  • High-speed AI-driven telemetry?
  • High-capacity memory and ?fast recording rate
  • Definitive dynamic surveys?
  • 16-bin azimuthal GR imaging?
  • Integrated annular pressure while drilling (APWD)?
  • Real-time identification of BHA high-frequency drilling dysfunctions including high-frequency torsional oscillation (HFTO)
  • High-power delivery to LWD tools uphole and downhole, enabling flexible BHA configuration
  • HT and HP performance ?up to 175 degC [347 degF] and 25,000 psi [172 MPa]
  • Slimhole design 5?–6? in

How it improves performance

The TruSight? intelligent slimhole MWD service enhances drilling performance by combining definitive dynamic surveys, high?resolution azimuthal GR imaging, integrated APWD downhole measurements, and AI?driven high?speed telemetry into a single, high?efficiency system engineered for deeper, more complex reservoirs. Designed for demanding drilling environments, the TruSight service delivers reliable, high?speed data that supports confident operational decision making while reducing NPT and overall operational risk.

By delivering definitive dynamic surveys, the TruSight tool eliminates survey?related idle time during connections, reducing flat time and accelerating overall well construction.

The TruSight service acquires wellbore surveys, azimuthal GR, annular pressure and temperature, and shock and vibration data while drilling. The service also enables pumps-off pressure and equivalent static density acquisition, reducing uncertainty in leakoff and formation integrity test interpretation.

Continuous identification of drilling dysfunctions—including shock and vibration and HFTO—helps prevent BHA damage, extend tool life, and reduce unplanned NPT, directly supporting improved well productivity and return on investment.

These capabilities are particularly critical in high?risk extended?reach, deepwater, and HT and HP applications, where managing NPT exposure and maintaining well construction efficiency are essential to asset performance.

How it works

The TruSight service combines advanced surveying, high-speed telemetry, and geosteering with drilling dynamics into a single, comprehensive solution for today’s drilling challenges. Definitive dynamic surveys provide uninterrupted trajectory updates in real time, eliminating static survey stops and enabling smooth progress through long laterals, deeper targets, and complex 3D paths. This advanced tool uses 16-sector azimuthal GR imaging to detect formation changes and structural features for precise geosteering and well placement. The integrated APWD module delivers real-time annular pressure data to spot early stability risks and adjust drilling parameters securely. To maintain awareness, high-speed intelligent telemetry reliably transmits trajectory, formation, and pressure data in challenging conditions. Built-in diagnostics monitor shock, vibration, and HFTO, providing early warnings of dysfunctions that could affect performance or tool integrity. A high-power BHA support system ensures stable operation of all LWD tools, enabling longer runs and consistent performance in high-temperature environments.

Specifications

Tool Specifications
Tool size4.75 in [12 cm]
Tool length26.5 ft [8.1 m]
Top thread connectionNC-38 pin
Bottom thread connectionNC-35 box
Maximum operating temperature175 degC [347 degF]
Maximum hydrostatic pressure25,000 psi
Maximum dogleg severity (DLS) rotating15°/100 ft
Maximum DLS sliding30°/100 ft
Maximum WOB (vertical free buckling)50,000 lbm
Maximum torque8,000 lbf.ft
Maximum rpm350
Flow range140–360 galUS/min
LCM (size, type, concentration)Medium nut plug, 50 lbm/bbl [142 kg/m?]
Maximum sand content1%
pH range9.5–11
Maximum dissolved oxygen content of drilling fluid<1 ppm
Maximum H2S content*3 ppm
Maximum allowable pull (housing)600,000 lbm

Telemetry Specifications
Maximum data transmission rateUp to 16 bps (physical)
2000+ bps with Orion compression

Survey Specifications
Stationary surveyContinuous surveyDefinitive dynamic survey
Inclination accuracy± 0.06°± 0.2°± 0.06°
Azimuth accuracy± 0.3°± 2.0°± 0.3°
ISCWSA survey error modelMWD Standardn/aDDS

Gamma Ray (Average and Azimuthal)
Detector typeNaI scintillation
Range0 to 1,000 gAPI
Accuracy±5%
Imaging
– quadrants
– sectors
16

Annular Pressure Measurements
Measurement typeStrain gauge
Range0–25,000 psi [0–1,724 bar]
Accuracy25 psi [1.72 bar]
Resolution3 psi [0.07 bar]

Annular Temperature Measurements
Measurement typeRTD (PT1000)
Range-40 to +180 degC
Accuracy1 degC
Resolution0.1 degC
All specifications are subject to change without notice.